Metallic layer for upper dentures



March 29,1927. 4 1,622,683

W. M. STANBROUGH METALLIC LAYER FOR UPPER DENTURES Filed May 1. 1925 #71; m1 Mama; 'm/yawz/q/l 1N VEN TOR.

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, underlying Patented Mar. 29, 1927.

UNITED STATES WILLIAM MONELL STANBR OUGI-I, 0F NEWBURGH, NEW YORK.

METALLIC LAYER FOR UPPER DENTURES.

Application filed May 1,

My invention relates to "the disclosures made in my previous patent for an upper dental plate patented February 19, 1924, bearing Number 1,484,344, wherein I described a method of constructing an upper artificial denture having a plurality of layers of metallic foil included in thepalatine portion of the denture, which layers are susceptible of being severally removed from time to time as conditions warrant.

The object of this invention is to disclose a method of construction of these layers of metallic foil, which will make them most adaptable for use. Another object of the invention is to disclose amethod of construction of these layers, so that they may be more readily placed on the market, and used in practice. A further object of my invention is to eliminate the necessity of burnishing the metal, when metal is used in the construction of any denture, because such burnishing results in thinning the metal, in loss of material, and in time consumed. It is a further object of my invention to so construct the underlying layer of my nest so that the edges of the slot cut in such layer, when the same is positioned, will be separated, and thus provide that the rubber or composition of the denture will aid in holding the layer in place in the palatine portion of the denture to be constructed. My method of construction will be better understood by reference to the accompanying drawings, in which like letters refer to like portions in the several views.

Fig. I shows a plan view of the pattern of one of my layers.

Fig. II shows a plan view of the same layer as it appears when positioned in the denture.

Fig. III shows a sectional elevation through the palatine portion of the denture with a plurality of layers positioned therein. I prefer to use a proper thickness of gold or pure tin out of which the pattern of the layer D may be cut or stamped. This layer is of sufficient size to cover the area desired. It is shaped generally in accordance with the characteristic typical shapes of dentures, viz, square, ovoid, tapering, etc. It is split or cut from the center 0 to the circumference at A and B, so that when conformed to the concave surface of a cast of the mouth, it will take the general form illustrated in Figure II, the points A and B having overlapped and allowed a 1925. Serial No. 27,161.

C towards the circumference, and provides contact between the surface of the cast and the superimposedmetal, without the necessity of burnishing, which is the general practice where any metal portlon is used in a denture, and which burnishing is wasteful of metal, also the thinning of the metal, and loss of time consumed. It will be noted that the slot portion indicated in Fig. II, created when the layer is positioned, will enablethe rubber or composition of the denture E to protrude through such slot, and thereby aid in holding this layer in position. The second layer, D of Figure III, is superimposed on layer D. This second layer is cut or stamped on the material in the same manner as the first, and is out in the same manner, but is, of course, of less area, and the slots cut in the second layer, and in the subsequent layers, D", D', etc., are cut from the center portion outward towards the circumference at the anterior part of the denture cast, and are also cut proportionately to the slot cut in the underlying plates, so that no portion of the smaller pieces will be exposed to the eye looking at the palatine portion of the finished plate, and the edges thereof will be gripped by the protruding rubber or composition of the plate.

Having thus described my invention, what I claim and desire to secure by United States Letters Patent, is:

1. A composite metallic sheet for upper dentures, comprising a plurality of layers cut from metallic foil, having curved anterior portions, straight posterior portions, and an angular slotted cutout extending from midway the posterior portions towards the curved anterior portion.

2. A composite metallic sheet for upper dentures, comprising a plurality of layers cut from metallic foil, having curved anterior portions, straight posterior portions, and an angular slotted cutout extending from midway the posterior portion towards the curved anterior portion, said cutouts so constructed that when said layers are positioned, an open portion of said slot may receive a portion of the composition of said denture.

8. A composite metallic sheet for upper dentures, com rising a plurality of layers cut from meta lic foil, each subsequent superimposed plate having an area proportionately less than the preceding plate, having small opening to remain from the mid point curved anterior portions, straight posterior portions, and an angular slotted cutout eX- tending from midway the posterior portion towards the curved anterior ortion.

l. A composite metallic sieet for upper dentures, comprising a plurality of layers cut from metallic toil, each subsequent superimposed plate having an area proportionately less than the preceding plate, having curved anterior portions,' straight posterior portions, and an angular slotted cutout eX- tending from midway the posterior portion towards the curved anterior portion, said cutouts so constructed that when said layers are positioned, an open portion of said slot may'receive a portion of the con ipos'ition of said denture.

5. A composite metallic sheet for upper dentures, comprising a plurality of layers cut from metallic foil, having curved anterior portions, straight posterior portions, and an angular slotted cutout GXtGllCllllg l'roin midway the posterior portion towards the curved anterior portion; said curved an terior portions being curved proportionate to the characteristics oi the several typically shaped dentures. i

6. A composite metallic sheet for upper dentures, comprising a plurality of layers cutfrom metallic foil, having curved anterior portions, straight posterior portions, and an angular slotted cutout extending from midway the posterior portion towards the curved anterior portion, said cutouts so constructed that when said layers are positioned, an open portion of said slot may receive a portion of the composition of said denture; said curved anterior portions being curved proportionate to the characteristics of the several typically shaped dentures.

7. A composite metallic sheet for upper dentures, con'iprising a plurality of layers cut from metallic foil, each subsequent superimposed plate having an area proportionately less than the preceding plate, having curved anterior portions, straight posterior portions, and an angular slotted cutout extending from midway the posterior portion towards the curved anterior portion; said curved anterior portions being curred proportionate to the characteristics of the several typically shaped dentures.

8. composite metallic sheet for upper dentures, comprising a plurality of layers cut from metallic foil, each subsequent superimposed plate having an area proportionately less than the preceding plate, having curved anterior portions, straight postcrior portions, and an angular slotted cutout extending from midway the posterior portion towards the curved anterior portion, said cutouts so constructed that when said layers are positioned, an open portion of said slot may receive a portion of the coniposition of said denture; said curved anterior portions being curved proportionate to the characteristics of the several typically shaped dentures.

In Witness whereof, I have signed my name to this specification this 1st day of April, 1925.

' WM. M. STANBROUGH. 

